If you missed the news, Swift code running on AWS Lambda is available under couple conditions, but first how does it work? In short, it’s a Swift Package Manager project that is executed on AWS Lambda. import AWSLambdaRuntime // Using Codable for JSON encoding private struct Input : Codable { let age : Int } // Using Codable for JSON encoding private struct Output : Codable { let message : String } // Using Input and Output through callback Lambda .